.fenlei_nactop_div{
    width: 100%;
    background: #ff2d2d;
    height: 35/50rem;
    text-align: center;
	.fenlei_nactop{
        font-size: 18/50rem;
        font-weight: 500;
        height: 35/50rem;
        line-height: 35/50rem;
        color: #fff;
	}
}